WO2023227333A1 - Procédé de mesure de la distance de freinage d'un escalier mécanique ou d'un trottoir roulant - Google Patents

Procédé de mesure de la distance de freinage d'un escalier mécanique ou d'un trottoir roulant Download PDF

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Publication number
WO2023227333A1
WO2023227333A1 PCT/EP2023/061520 EP2023061520W WO2023227333A1 WO 2023227333 A1 WO2023227333 A1 WO 2023227333A1 EP 2023061520 W EP2023061520 W EP 2023061520W WO 2023227333 A1 WO2023227333 A1 WO 2023227333A1
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WO
WIPO (PCT)
Prior art keywords
escalator
braking
conveyor belt
braking distance
moving walkway
Prior art date
Application number
PCT/EP2023/061520
Other languages
German (de)
English (en)
Inventor
Wolfgang Neszmerak
Christoph Makovec
Gerhard Kleewein
Original Assignee
Inventio Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inventio Ag filed Critical Inventio Ag
Publication of WO2023227333A1 publication Critical patent/WO2023227333A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning

Definitions

  • the invention relates to a method for measuring the braking distance of an escalator or a moving walkway, a braking distance measuring device for carrying out this method, and an escalator or a moving walkway with such a braking distance measuring device.
  • Escalators and moving walks are used to transport people and are used in department stores, shopping malls, train stations, airports and the like. For this purpose, they have a conveyor belt, which is arranged to be movable in the escalator or moving walkway and can be driven by a drive motor. Since these systems transport people, they are subject to high safety requirements, such as those defined in the European standard EN 115-1 or in the US standards ASME A17.1 / CSA B44.
  • ENI 15-1 prescribes a standard braking distance of the conveyor belt in the range between 0.4m and 1.5m for escalators and moving walks at a specified nominal speed of 0.75m/s (operating speed), whereby the maximum permissible deceleration of 1m/ s2 does not apply may be exceeded.
  • JP2008265971A proposes a braking distance measuring device and a method for carrying out this measurement.
  • a linear measuring scale is attached to the conveyor belt and an optical sensor is temporarily attached to a fixed part of the escalator or moving walk and connected to the escalator control.
  • the conveyor belt is then brought to operating speed.
  • a stop signal is sent to the control and the conveyor belt is slowed down by the brake.
  • the distance traveled by the optical sensor on the measuring scale corresponds to the standard braking distance.
  • This measuring method corresponds exactly to the standard regulations of ENI 15-1, as it stipulates that the braking distance must be measured from the appearance of the stop signal until the conveyor belt comes to a standstill. Furthermore, the standard recommends keeping the standard braking distance as close as possible to the lower limit of the range (0.4m in the example).
  • the braking distance measurement method described above has the disadvantage that time periods without braking torque are also recorded, such as the reaction times of the optical sensor, the control and the electromechanical switch (contactor or relay) to be controlled by the control, as well as the reaction time of the brake from the separation of the ventilation flow to Start of effectiveness of the braking torque.
  • the braking distance measurement method described therefore does not provide any measurement results that reflect the actual braking behavior of the brake (braking distance while the braking torque of the brake is acting).
  • the object of the present invention is to provide a braking distance measurement method which provides more precise measurement results with regard to the actual braking behavior of the brake.
  • This task is solved by the following method for measuring the braking distance of an escalator or moving walk and with a braking distance measuring device for carrying out this method.
  • the escalator or moving walkway on which such a measurement can be carried out has a conveyor belt, at least one drive motor for driving the conveyor belt, a brake for braking the conveyor belt and a controller.
  • the drive motor and the brake can be controlled by the controller.
  • the method for measuring the braking distance can be used with all known brake types Escalators and moving walkways are used.
  • a braking distance measuring device is arranged in the area of the conveyor belt, which includes at least one triggering device that can be connected to the control, an optically detectable, linear measuring scale and an optical sensor.
  • the method for measuring the braking distance has several steps that can be carried out in the following order. However, this order is not mandatory; where appropriate, process steps can be preferred before other process steps or carried out after them, or further process steps, as described in the following paragraphs, can be inserted between these process steps.
  • the linear measuring scale is arranged in the escalator or in the moving walkway in such a way that it has a relative movement sequence to a marking as a result of a movement of the conveyor belt.
  • This relative movement sequence can be recorded by the optical sensor, for example as an image sequence.
  • the conveyor belt is brought to a predetermined speed.
  • the specified speed usually corresponds to the transport speed in normal operation, which is usually referred to as the nominal speed.
  • the specified speed can also be faster or slower than the nominal speed if different working conditions of the service brake are to be tested.
  • a stop signal is sent to the control using the triggering device.
  • the stop signal can be triggered manually, for example by manually entering the triggering device. However, it is also possible to generate the stop signal automatically by the triggering device, for example by reaching the predetermined speed triggering the stop signal in the triggering device.
  • the relative movement sequence is recorded using the optical sensor, at least from the stop signal to complete standstill of the conveyor belt.
  • the braking distance measuring device includes an acoustic sensor which records the braking operating noises of the brake synchronously with the optical recording. These braking operating noises reflect the actual braking application in chronological order. Since the relative movement sequence was recorded synchronously, the beginning of the braking operating noises can be clearly assigned to a specific image of the relative movement sequence recorded as an image sequence. To determine the braking distance, a subsequent image of the captured image sequence of the movement sequence must be selected, which was clearly captured at a time when there were no longer any braking noises. If the two images are now compared with each other, the braking distance covered during the actual use of the brake can be read from the different positions of the marking on the measuring scale.
  • the braking distance measured in this way makes it possible, for example, to calculate the average deceleration of the brake more precisely. It is also possible to record a braking curve (distance/time diagram, where the time is defined by the number of images per second) by evaluating the braking distance covered step by step from image to image, from which the maximum deceleration can be read. Based on these measurement results, the brake can be set close to the maximum permissible deceleration. This minimizes the actual braking distance that occurs without exceeding the specified maximum deceleration value.
  • Measuring the braking distance during actual use of the brake also offers advantages when it comes to diagnosing the technical condition of the escalator or moving walk. For example, the condition of the brake pads of the brake and/or their changes compared to previously carried out measurements can be assessed more precisely. Furthermore, the triggering time of the stop signal can also be recorded, whereby an image of the recorded image sequence can be assigned to it. If the optical capture of the movement sequence begins with the stop signal, it is logically the first image. The reaction time of the braking system until a braking torque is actually applied by the brake and the distance covered can now be determined by comparing the two recording times of this first image and the image with the beginning of the Brake operating noises occur.
  • the path traveled by the marking hereinafter referred to as the reaction length, can also be determined using these two images.
  • a response time or response length that is too long compared to empirical values can indicate that, for example, the contactors mentioned above need to be replaced.
  • the ENI 15-1 standard stipulates that the braking distance must be recorded from the appearance of the stop signal until the conveyor belt has come to a complete standstill. This standard braking distance can be determined by simply adding the reaction length and braking distance.
  • this evaluation activity can be carried out manually, but this is time-consuming.
  • the recording of the relative movement and the recording of the braking operating noises recorded synchronously are therefore displayed as a graphically displayed audio track parallel to one another in an image sequence. This makes it much easier to determine the two or three relevant images of an image sequence described above, since the images do not first have to be assigned via the temporal sequence of the braking operating noises by reading out the recording times.
  • a starting position of the marking relative to the measuring scale is now extracted from the image sequence using a starting point of the braking operating noise. Furthermore, an end position of the marking relative to the measuring scale is also extracted from the elimination of the braking operating noise.
  • the image containing the end position can also be defined by means of a fixed end position, at which there will certainly be no more braking operating noises, since once the conveyor belt has stopped there are no longer any braking operating noises and all subsequently recorded images of the image sequence look exactly the same.
  • the start position and the end position are determined automatically from the graphically displayed braking operating noise or the soundtrack using an image processing program.
  • the image processing program uses known image analysis methods and image analysis algorithms, which are known from the electronic processing of video sequences. These analysis algorithms are based on, for example well-known image processing techniques that are optimized and applied in self-learning processes using artificial intelligence in neural networks.
  • a common image processing technique for generating information from an image is, for example, the calculation of the histogram, which provides information about the statistical brightness distribution in the image.
  • Such a histogram can serve, for example, as a configuration for further image processing steps or as information for a human user of software.
  • Other computable information about an image is, for example, its entropy or average brightness.
  • vector analyzes can follow how individual prominent points move relative to one another and from this conclusions can be drawn about movement scenarios of the marking relative to the measurement scale.
  • an image analysis of the audio track optically displayed in the image sequence can be carried out and the image of the image sequence containing the starting point of the braking operating noise and one of the images of the image sequence in which the elimination of the braking operating noise can be reliably recognized can be marked in the image sequence.
  • an analysis of the noise level of the recorded braking operating noise can also be carried out, so that the time of the start of braking operation and that of the end of braking operation can be determined and the corresponding images from the image sequence can be identified via the time allocation.
  • the distance between the start position and the end position is determined by comparing the two marked images of the image sequence. This distance corresponds to the braking distance covered when the brake is applied.
  • the different positions of the marking on the measuring scale can be read, for example, by optical recognition (Optical Character Recognition OCR) of numbers plotted on the measuring scale and then forming the difference.
  • the triggering device is connected to the controller.
  • the triggering device picks up operating data from the drive motor from the controller, with a stop signal being sent to the controller as soon as the drive motor has reached a speed that corresponds to the predetermined speed of the conveyor belt.
  • the stop signal can be entered manually into the triggering device, for example by pressing a pushbutton or via a keyboard of the triggering device.
  • the stop signal is transmitted directly to the controller by the triggering device.
  • Further commands can be transmitted to the controller via the keyboard, which can also be generated on a touch-sensitive screen of the triggering device.
  • the start command can be entered via the keyboard so that the control sets the conveyor belt in motion.
  • the conveying direction or the direction of movement of the conveyor belt can also be entered using the keyboard. It is also possible for the controller to transmit operating data from the passenger conveyor system, such as the current speed, to the triggering device, which can then be displayed on the screen. The control can also transmit safety-relevant messages to the triggering device, so that, for example, a refusal of the start command and the underlying cause can be displayed on its screen.
  • the braking distance measuring device for carrying out the method described above has at least one triggering device that can be connected to the controller, an optically detectable, linear measuring scale, an optical sensor and an acoustic sensor.
  • the optical sensor, the acoustic sensor and the triggering device are preferably part of a smartphone or tablet with a software application (computer program).
  • the software application includes at least program steps which enable a synchronous recording of a relative movement of the arranged or defined marking to the measuring scale and the braking operating noises.
  • the software application can also contain program parts by means of which the image processing described above can be carried out.
  • a wired or wireless connection can be created temporarily to control an escalator or moving walkway.
  • the braking distance measuring device preferably comprises a holder for the smartphone or tablet, this holder being able to be temporarily arranged on a fixed part of an escalator or moving walkway.
  • This fixed part can, for example, be a balustrade or a balustrade base or a floor cover escalator or moving walkway.
  • At least the linear measuring scale, the optical sensor and the acoustic sensor of the braking distance measuring device are preferably arranged in a drive area of the escalator or moving walkway.
  • the drive area is usually designed in the upper access area so that mainly tensile forces act on the conveyor belt.
  • the drive motor, a drive shaft, a gearbox and the brake are usually arranged below a walkable floor cover in the drive area.
  • the conveyor belt of the escalator can be entered or left via this accessible floor cover. Moving walks are designed in a comparable way.
  • the linear measuring scale preferably has a slatted support with a metric length scale and/or a length scale in inches.
  • the marking can be an existing contour of the escalator or moving walkway, but also a temporarily attached object such as a sticker, a colored dot, etc.
  • the marking is arranged or defined on the conveyor belt, and the linear measuring scale is arranged on a fixed part of the escalator or moving walkway.
  • the marking is preferably defined.
  • the marking is, for example, a gap between two escalator steps of the conveyor belt of the escalator or a gap between two pallets of the conveyor belt of the moving walkway.
  • a marking that can be temporarily attached to the conveyor belt can also be used, such as a line applied using a waterproof felt-tip pen that extends transversely to the direction of movement of the conveyor belt.
  • the measuring scale is arranged on the conveyor belt and the marking is defined or arranged on a fixed part of the escalator or moving walkway.
  • a sheet metal joint between two cladding sheets of a balustrade of the escalator or moving walkway can be defined as a marking.
  • a marking that can be temporarily attached to the balustrade can also be used, for example an arrow-shaped sticker.
  • Figure 1 schematically a sectioned side view of an escalator and its most important components
  • Figure 2 a three-dimensional partial view of the drive area designated in Figure 1 with a braking distance measuring device;
  • Figure 3 a three-dimensional view of a smartphone with a software application through which the smartphone can be used as a component of the braking distance measuring device;
  • Figure 4 an image from an image sequence that was recorded by an optical sensor of the braking distance measuring device shown in Figure 2;
  • Figure 5A a first image from an image sequence recorded by the braking distance measuring device at the time a stop signal is input;
  • Figure 5B a second image from the same image sequence at the time of a starting point at which parallel recorded braking operating noises begin;
  • Figure 5C a third image from the same image sequence at the time of an end position at which parallel recorded braking operating noises end.
  • FIG. 1 shows a schematic sectional side view of an escalator 1 and its most important components.
  • the escalator 1 uses the escalator 1, people can be transported, for example, between two levels El, E2 of a building.
  • the escalator 1 has a conveyor belt 26 with several escalator steps 3, which are arranged one behind the other and which can be displaced in a direction of movement 6 along a travel path using two annularly closed and mutually parallel conveyor chains 5 (only one visible in FIG. 1).
  • the double arrow in the direction of movement 6 indicates that the escalator 1 can transport users from level El to level E2 as well as in the opposite direction.
  • Each escalator step 3 is attached between the two conveyor chains 5.
  • the escalator 1 has a drive area 13 in which a drive shaft 17, a gear 16, a drive motor 19 and a brake 18 are arranged.
  • the escalator 1 can have different types of brakes, for example the service brake shown in FIG. 1, which is usually designed as a shoe brake or band brake.
  • the escalator can also have a safety brake, as disclosed, for example, in WO2014/009227A1.
  • the drive area 13 is usually arranged in the upper level E2 of the structure, while a clamping station 7, shown only schematically, with a deflection axis 15 is arranged in the lower level El.
  • the drive shaft 17 and the deflection axle 15 as well as other supporting components of the escalator 1 are held in a supporting structure 2, usually in the form of a truss structure, which is only shown as an outline in Figure 1 for reasons of clarity.
  • the escalator 1 also has two balustrades 8 (only one visible), on each of which a handrail 4 is arranged all around.
  • the escalator steps 3 are moved during an upward direction of movement 6 in advance from a lower access area 10 of the escalator 1 bordering the lower level Elan, via a middle inclined area 11, to an upper access area 12 bordering the upper level Elan and then moved back in the opposite direction during return.
  • the drive motor 19 and the brake 18 arranged in the drive area 13 are controlled and regulated by means of a controller 14.
  • the torque or the rotational movement of the motor shaft (covered by the gearbox) of the drive motor 19 is transmitted to the drive shaft 17 via the gear 16 (a worm gear and a drive chain are shown as an example). Since there are usually two conveyor chains 5, between which the escalator steps 3 are arranged, the drive shaft 17 must also have two drive sprockets (not shown in detail), over which the conveyor belt 26 is guided in a motion-transmitting manner. All components of the drive area 13 are also housed in the supporting structure 2 and are spanned by a walkable floor cover 9, which is part of the upper access area 12.
  • This braking distance measuring device 30 can be installed temporarily in the present exemplary embodiment, that is, it can be installed, used and removed again as needed.
  • a fixed installation of the braking distance measuring device 30 is also conceivable, for example in a balustrade base 20 of the balustrade 8.
  • FIG 2 shows a three-dimensional, enlarged partial view of the drive area 13 designated in Figure 1 with a braking distance measuring device 30 installed there.
  • the braking distance measuring device 30 has a linear measuring scale 31 and a smartphone 32 with an optical sensor 35 and an acoustic sensor 36 (see Figure 3 ) on. Furthermore, the braking distance measuring device 30 includes a holder 33 for the smartphone 32 and fastening means 34 for the linear measuring scale 31.
  • the slat-shaped measuring scale 31 is placed with its first end 31A on the base cover 9 and with the fastening means 34 in the form of a Brick fixed on the base cover 9.
  • the holder 33 has a suction cup 37 which is attached to a cladding plate 21 of the Balustrade base 20 is fixed.
  • the smartphone 32 rests on the holder 33, the holder 33 being arranged on the cladding panel 21 in such a way that the optical sensor 35 of the smartphone 32 detects both the linear measuring scale 31 and always at least two escalator steps 3 of the conveyor belt 26 can capture. Since the brake 18 is located below the floor cover, with this arrangement the acoustic sensor 36 (see FIG. 3) of the smartphone 32 is also ideally positioned for recording brake operating noises 51 (see FIGS. 5A to 5C).
  • Figure 3 shows a three-dimensional view of a smartphone 32 with a software application 38, through which the smartphone 32 can be used as a component of the braking distance measuring device 30.
  • the components drive motor 19, brake 18 and control 14 of the escalator 1 are shown schematically in FIG. 3 in order to show their interactions with the smartphone 32.
  • a conventional smartphone 32 has sufficient computing capacity and storage capacity for storing and processing the software application 38 and has an optical sensor 35 (represented symbolically as a video camera), an acoustic sensor 36 (represented symbolically as a hand-held microphone) and a has a touch-sensitive screen 39 on which graphic buttons 41, 42, 43, 44 and thus manually operable elements of a trigger device 45 can be generated.
  • the smartphone 32 has a communication module 47 through which a data connection to the control 14 of the escalator can be established. Since a so-called tablet has the same components and properties, a tablet can also be used instead of the smartphone 32.
  • triggering device 45 can be designed as a hand-held device with a push button (not shown), for example to enter a stop signal 46.
  • the aforementioned software application 38 for the smartphone 32 includes at least program steps which synchronously record a relative movement of a marking 53, 54, 55 to the linear measuring scale 31 and the braking operating noises 51 of the Brake 18 enables (see Figure 4). Further explanations of the linear measuring scale 31 and the aforementioned markings 53, 54, 55 can be found below in the description of Figure 4.
  • the software application 38 also has program steps by means of which the required graphic buttons 41, 42, 43, 44 and/or graphic representations 48 of operating data can be generated on the screen 39 following the process flow.
  • a first button 41 serves to set the escalator 1 (see also FIG. 1) in motion with a direction of movement 6 from the lower floor El to the upper floor E2.
  • a second button 42 the escalator 1 can be moved in a direction of movement 6 from the upper floor E2 to the lower floor El.
  • a graphical representation 48 can be created and displayed by further program steps of the software application 38.
  • the measurement data required for this is transmitted from the controller 14 via the communication module 47 to the smartphone 32 serving as a triggering device 45.
  • the graphic representation 48 of the exemplary embodiment shows the acceleration behavior of the conveyor belt 26 from standstill Vo to the nominal speed VN.
  • a stop signal 46 can be entered via a third button 43 of the triggering device 45 and sent to the control 14 of the escalator 1.
  • the optical sensor 35 and the acoustic sensor 36 are simultaneously activated in order to record an image sequence 60 and an associated audio track 65 (see Figures 4 and 5A to 5C).
  • the stop signal 46 is immediately processed by the controller 14, so that the drive motor 19 is disconnected from a power supply (not shown) and the brake 18 is activated by switching off a ventilation current.
  • a loud braking operating noise 51 is released in a decreasing trend until the conveyor belt 26 (see Figure 1) stops.
  • the braking operating noises 51 of a service brake and a safety brake can differ, especially when the braking operating noise 51 fades away.
  • all brake types are in common that the beginning of the braking operating noises 51 can be seen very clearly on the audio track 65.
  • FIGS. 1 and 2 show an image 64 from an image sequence 60 that was recorded by the optical sensor 35 of the braking distance measuring device 30 shown in FIGS. 1 and 2.
  • the linear measuring scale 31 arranged above the escalator steps 3 of the conveyor belt 26 is clearly visible.
  • the balustrade base 20 is partially visible, in particular two cladding sheets 22, 23 of the balustrade base 20 as well as the base cover 9 and the comb plate 27.
  • the linear measuring scale 31 is arranged in the drive area 13 and a marking 53, 54 is defined or also arranged.
  • a gap arranged between two escalator steps serves as a marker 53, which moves relative to the fixed measuring scale 31 when the conveyor belt 26 is running.
  • the gap is defined as a marker 53.
  • a special marking 54 can also be temporarily attached to the conveyor belt 26, for example the arrow indicated by a broken line, which is preferably attached to one of the escalator steps 3 using an easily recognizable color or as a sticker.
  • the gap between two pallets can be defined as a marking 53. Due to the very narrow design of pallets, it may be better to provide a temporarily attachable marking 54.
  • the measuring scale 56 can also be arranged on the conveyor belt 26, for example as a sticker.
  • the marking 24, 55 is to be provided on a fixed part of the escalator 1 or the moving walkway.
  • a sheet metal joint between the two cladding sheets 22, 23 can be defined as a marking 24.
  • the marking 55 can also be an arrow-shaped sticker, which can be temporarily attached to a fixed part of the escalator 1 or the moving walkway.
  • 5A shows a first image 61 from an image sequence 60 recorded by the braking distance measuring device 30 at the time of input 67 of a stop signal 46.
  • FIG. 5B shows a second image 62 from the same image sequence 60 at the time of a starting point 68, at which the data recorded in parallel Brake operating noises 51 begin.
  • 5C shows a third image 63 from the same image sequence 60 at the time of an end position 69 at which the parallel recorded braking operating noise 51 ends.
  • the method for measuring the braking distance LB of an escalator 1 or a moving walk includes, on the one hand, preparation steps and, on the other hand, measurement and evaluation steps.
  • the preparation steps include arranging a braking distance measuring device 30 in the drive area 13 above the conveyor belt 26. Possible embodiments of this have already been described above with reference to FIGS. 2 and 4.
  • the triggering device 45 of the braking distance measuring device 30 is connected to the control 14 of the escalator 1 in a signal-transmitting manner.
  • the measurement steps include the method steps required to generate image sequences 60 and an associated audio track 65 with the braking operating noises 51.
  • the conveyor belt 26 is brought to a predetermined speed Vv, for example the nominal speed VN, by means of a manual input on the triggering device 45. After reaching the predetermined speed Vv, a stop signal 46 is sent to the controller 14 by means of the triggering device 45. It is also possible that the triggering device 45 receives operating data of the drive motor 19 from the controller 14 and a stop signal 46 is automatically sent to the controller 14 as soon as the drive motor 19 has reached a speed which corresponds to the predetermined speed Vv of the conveyor belt 26.
  • the optical sensor 35 begins recording the relative movement sequence between the marking 53 and the linear measuring scale 31, at least from the stop signal 46 until the conveyor belt 26 comes to a standstill.
  • the audio track 65 with the braking operating noises is recorded in synchronism with the optical recording 51 of the brake 18 through the acoustic sensor 36 of the braking distance measuring device 30.
  • the recording of the relative movement between the marking 53 and the linear measuring scale 31 and the recording of the audio track 65 recorded synchronously are combined parallel to one another in an image sequence 60.
  • the first recorded image 61 of the image sequence 60 can be assigned to the time of input 67 of the stop signal 46.
  • the sound track 65 is not simply a horizontal line, but has a noise level that reproduces the normal operating noise of the escalator 1 at the nominal speed VN.
  • the signal input position 81 shown with a broken line at the time of the stop signal 46 can be read and noted on the first image 61 from the position of the marking 53 to the measuring scale 31.
  • the audio track 65 has a sudden increase in the noise level, which then decreases continuously.
  • This area of the soundtrack 65 has the braking operating noises 51.
  • the second image 62 shows the position of the marking 53 relative to the linear measuring scale 31 at the time of a starting point 68 at which the parallel recorded braking operating noises 51 begin.
  • the second image 62 is displayed when the sudden increase in the noise level is congruent with the fixed mark 75. Again, the position of the marking 53 can be read from the measuring scale 31 and as the starting position 82 of the Brake operating noises 51 are recorded.
  • reaction length LR The distance covered by the marking 53 between the signal input position 81 and the starting position 82 is the reaction length LR, which arises from the fact that the controller 14 and the components involved in a brake application such as contactors for interrupting the ventilation flow (not shown) and the brake 18 itself , have a certain reaction time.
  • the third image 63 of the image sequence 60 shows the position of the marking 53 relative to the linear measuring scale 31 at the time of an end position 69, at which the parallel recorded braking operating noises 51 end on the audio track 65 and the conveyor belt 26 thus stops.
  • the third image 63 is displayed when the noise level of the soundtrack 65 has dropped to its lowest level. Audio track 65 only has a background noise. Since the conveyor belt 26 stops from this point on, all subsequent images of the image sequence 60 look exactly the same. Instead of a precise determination of the end of the braking operating noise 51, an image 63 is preferably selected, which reliably reflects a static state of the conveyor belt 26. This is the case when two images that are separated in time at the end of the image sequence 60 have an identical position of the marking 53 relative to the measuring scale 31. Again, the position of the marking 53 can be read from the measuring scale 31 and recorded as the end position 83.
  • the distance covered by the marking 53 'between the start position 82' and the end position 83 is the actual braking distance LB during the braking operation of the brake 18.
  • the ENI 15-1 standard stipulates that the braking distance detection from the input 67 respectively from the appearance of the stop signal 46 until the conveyor belt 26 has come to a complete standstill. This standard braking distance can be determined by simply adding the reaction length Ln and braking distance LB.
  • the manual evaluation of the image sequence 60 described above can also be carried out automatically using an image processing program by carrying out an image analysis of the course of the recorded braking operating noises 51 optically represented in the image sequence 60 and the image of the image sequence 60 and one containing the starting point 68 of the braking operating noise 51 of the images of the image sequence 60, in which the elimination of the braking operating noise 51 can be reliably recognized, are marked in the image sequence 60.
  • the braking distance LB between the start position 82 and the end position 83 is determined by means of an image comparison of the two marked images of the image sequence 60.
  • the different positions of the marking 53 are read out to the measuring scale 31 and the braking distance LB is determined by forming the difference.

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Abstract

L'invention concerne un procédé de mesure de la distance de freinage (LB) et un dispositif de mesure de distance de freinage (30) pour mettre en œuvre le procédé sur un escalier mécanique (1) ou un trottoir roulant. Le dispositif de mesure de distance de freinage (30) comprend au moins un dispositif de déclenchement (45) qui peut être relié au dispositif de commande (14) de l'escalier mécanique (1) ou du trottoir roulant, une échelle de mesure linéaire détectable optiquement (31), un capteur optique (35) et un capteur acoustique (36). Afin de permettre une mesure plus précise de la distance de freinage (LB), un processus de freinage est enregistré optiquement et acoustiquement sous la forme d'une séquence d'images (60) avec une piste audio affichée graphiquement (65). Le point de départ (68) et la position finale (69) de bruits d'opération de freinage (51) enregistrés sur la piste audio (65) peuvent être attribués avec précision aux images (62, 63) de la séquence d'images (60), et la distance de freinage (LB) est déterminée à partir des images déterminées (62, 63) par comparaison des différentes positions d'un marquage (53) avec l'échelle de mesure (31).
PCT/EP2023/061520 2022-05-24 2023-05-02 Procédé de mesure de la distance de freinage d'un escalier mécanique ou d'un trottoir roulant WO2023227333A1 (fr)

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EP22174998 2022-05-24
EP22174998.9 2022-05-24

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WO2023227333A1 true WO2023227333A1 (fr) 2023-11-30

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008214012A (ja) * 2007-03-02 2008-09-18 Hitachi Building Systems Co Ltd 乗客コンベア運転装置
JP2008265971A (ja) 2007-04-23 2008-11-06 Toshiba Elevator Co Ltd エスカレータブレーキスリップ距離測定装置およびその測定方法
WO2014009227A1 (fr) 2012-07-13 2014-01-16 Inventio Ag Frein de sécurité destiné à un escalier roulant ou à un trottoir roulant
CN105731234A (zh) * 2016-04-11 2016-07-06 广东省特种设备检测研究院珠海检测院 一种自动扶梯制动性能检测装置及其方法
CN107986125A (zh) * 2017-10-24 2018-05-04 安徽省特种设备检测院 非接触式自动扶梯/人行道三路速度同步检测装置及方法
JP2019210076A (ja) * 2018-05-31 2019-12-12 東芝エレベータ株式会社 乗客コンベア停止距離測定装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008214012A (ja) * 2007-03-02 2008-09-18 Hitachi Building Systems Co Ltd 乗客コンベア運転装置
JP2008265971A (ja) 2007-04-23 2008-11-06 Toshiba Elevator Co Ltd エスカレータブレーキスリップ距離測定装置およびその測定方法
WO2014009227A1 (fr) 2012-07-13 2014-01-16 Inventio Ag Frein de sécurité destiné à un escalier roulant ou à un trottoir roulant
CN105731234A (zh) * 2016-04-11 2016-07-06 广东省特种设备检测研究院珠海检测院 一种自动扶梯制动性能检测装置及其方法
CN107986125A (zh) * 2017-10-24 2018-05-04 安徽省特种设备检测院 非接触式自动扶梯/人行道三路速度同步检测装置及方法
JP2019210076A (ja) * 2018-05-31 2019-12-12 東芝エレベータ株式会社 乗客コンベア停止距離測定装置

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